Washington Capitals' Alex Ovechkin (8) celebrates his goal with Evgeny Kuznetsov (92) and Christian Djoos (29) during the first period of an NHL hockey game against the Pittsburgh Penguins in Pittsburgh, Thursday, Oct. 4, 2018. (AP Photo/Gene J. Puskar)

Pittsburgh Penguins' Jake Guentzel (59) gets the put behind Washington Capitals goaltender Braden Holtby for a goal during the first period of an NHL hockey game in Pittsburgh, Thursday, Oct. 4, 2018. (AP Photo/Gene J. Puskar)

Pittsburgh Penguins' Jake Guentzel (59) celebrates his goal with Justin Schultz during the first period of an NHL hockey game against the Washington Capitals in Pittsburgh, Thursday, Oct. 4, 2018. (AP Photo/Gene J. Puskar)

Washington Capitals goaltender Braden Holtby deflects a shot during the second period of the team's NHL hockey game against the Pittsburgh Penguins in Pittsburgh, Thursday, Oct. 4, 2018. (AP Photo/Gene J. Puskar)

Pittsburgh Penguins' Jake Guentzel, center, celebrates his goal with Sidney Crosby (87), Justin Schultz (4), and Jamie Oleksiak (6) during the second period of an NHL hockey game against the Washington Capitals in Pittsburgh, Thursday, Oct. 4, 2018. It was Guentzel's second goal of the game. (AP Photo/Gene J. Puskar)

PITTSBURGH (AP) — The Pittsburgh Penguins gained a measure of revenge against a rival that ended their season last spring.

Kris Letang scored his second goal 1:20 into overtime and the Penguins opened theseason with a 7-6 victory over the Stanley Cup champion Washington Capitals on Thursday night.

"I think we wanted to respond to last season," Letang said. "I don't think it mattered if it was (Washington) or another team."

Letang beat goalie Braden Holtby with a slap shot from the point on a power play. Letang finished with three points, tying Hall of Famer Paul Coffey for the most by a defenseman in team history with 440.

"I always looked up to him," Letang said. "It's pretty cool to have your name next to his."

"I thought he had a really solid night," Sullivan said. "He plays big minutes and in all of the situations for us. I'm happy for him because I know how hard he works."

Jake Guentzel also scored twice, Evgeni Malkin had a goal and two assists, and Derick Brassard and Jamie Oleksiak added goals in Pittsburgh's opener. Matt Murray made 30 saves.

T.J. Oshie scored twice for Stanley Cup champion Washington, coming off a 7-0 home victory over Boston on Wednesday night in the Capitals' opener.

Alex Ovechkin had his second of the season and 609th overall, passing Dino Ciccarelli for 18th on the NHL list. Brooks Orpik scored his first goal in 182 regular-season games. Jakub Vrana and John Carlson also scored. Holtby made 34 saves.

The Capitals met the Penguins for the first time since eliminating Pittsburgh in six games during the second round of the Stanley Cup playoffs. The winner of Pittsburgh and Washington's second- round series the past three playoffs has gone on to win the Stanley Cup, including the Capitals' first-ever championship last season. During the previous three seasons, the Penguins and Capitals met 32 times in the regular season and playoffs with 16 of those 32 games decided by one goal.

The Capitals return 20 of 22 players who won the Stanley Cup, while Pittsburgh seeks its third championship in four seasons with a lineup largely unchanged from last season.

"Both of these teams have so much firepower throughout the whole lineup," Oshie said. "When you get a sloppy game, guys making misreads defensively, turning the puck over at the wrong time, each team is going to make you pay."

Malkin scored 2:45 into the third period, putting Pittsburgh ahead by two, but Oshie tied it at 6 with goals 21 seconds apart.

"It was not a pretty game," Letang said. "It was ugly. It was that type of game."

Five of the first seven shots were goals as the Capitals held a 3-2 lead eight minutes into the game.

Both teams scored in the first four minutes of the second, but Pittsburgh closed the period with goals from Guentzel and Brassard scored less than two minutes apart, giving the Penguins a one-goal lead going into the third.

"It was hard to get momentum in this game," Letang said. "The first one is never pretty. We got it out of the way and obviously it's good that we got the two points."

NOTES: This is the second time in the past three years Pittsburgh opened its season with Washington. Pittsburgh is 6-0 against Washington in season openers. ... D Jack Johnson played his first game for Pittsburgh after signing as a free agent for five years and $16.25 million on July 1. .. Ovechkin is one goal behind Bobby Hull for 17th. ... Orpik's last regular-season goal came Feb. 26, 2016, against Minnesota.